<?php declare(strict_types = 1);

namespace PHPStan\Process;

use Fidry\CpuCoreCounter\CpuCoreCounter as FidryCpuCoreCounter;

use Fidry\CpuCoreCounter\NumberOfCpuCoreNotFound;

use PHPStan\DependencyInjection\AutowiredParameter;

use PHPStan\DependencyInjection\AutowiredService;

#[AutowiredService]

final class CpuCoreCounter

{

private ?int $count = null;

public function __construct(

#[AutowiredParameter(ref: '%parallel.loadLimit%')]

private ?float $loadLimit,

)

{

}

public function getNumberOfCpuCores(): int

{

if ($this->count !== null) {

return $this->count;

}

try {

$this->count = (new FidryCpuCoreCounter())->getAvailableForParallelisation(0, null, $this->loadLimit)->availableCpus;

} catch (NumberOfCpuCoreNotFound) {

$this->count = 1;

}

return $this->count;

}

}